HB 1810 establishes the Workforce Housing Program under the Texas Department of Housing and Community Affairs. This program aims to provide financial assistance, in the form of grants or low-interest loans, to municipalities for constructing and rehabilitating workforce housing developments. These developments must reserve a portion of units for individuals and families earning between 30% and 120% of the area median income, adjusted for family size, and maintain these affordability requirements for at least 20 years. The bill creates a special state treasury account, the Workforce Housing Fund, to support the program. The fund will receive money from appropriations, loans, gifts, grants, and other sources, with rules for allocation and spending set by the department. Financial assistance must be utilized within 36 months, or the funds must be returned.